作者:Ken-Hsuan Liao、Yuqiang Qian、Christopher W. Macosko
DOI:10.1016/j.polymer.2012.06.020
日期:2012.8
applications. Using thermally reduced graphene (TRG) and in-situ polymerization we have created PUA nanocomposites with an ultralow percolation concentration of 0.15 wt% (0.07 vol%) graphene. Urethane-acrylate oligomer (UAO) was synthesized and diluted by tripropyleneglycol diacrylate (TPGDA) to form flowable UAO/TPGDA mixture (UA). TRG was solvent-blended in UA to form uncured TRG/UA liquids and were polymerized
聚氨酯丙烯酸酯(PUA)被广泛用作汽车工业的涂料。使这些涂层具有导电性将开拓新的应用领域。使用热还原石墨烯(TRG)和原位在聚合过程中,我们创建了具有0.15 wt%(0.07 vol%)石墨烯超低渗滤浓度的PUA纳米复合材料。合成氨基甲酸酯丙烯酸酯低聚物(UAO),并用三丙二醇二丙烯酸酯(TPGDA)稀释,形成可流动的UAO / TPGDA混合物(UA)。将TRG溶剂掺混在UA中以形成未固化的TRG / UA液体,并通过与偶氮二异丁腈(AIBN)引发剂的自由基聚合进行聚合。通过表面电阻测量,体电导率和模量确定,聚合的TRG / PUA纳米复合材料的渗滤浓度为0.15 wt%(0.07 vol%)。TEM图像显示TRG在PUA中均匀分散。差示扫描量热法(DSC)用于监测TRG / UA未固化液体的聚合以及聚合的TRG / PUA纳米复合材料的热性能。